Hi Mungo
On 16/09/2016 14:07, Mungo Carstairs (Staff) wrote:
> I fell to wondering why Java doesn't provide things like a 'read-only'
> view of a collection...thinks...you could wrap a List with a List
> that overrides all update methods to throw an exception...Googled for
> this...well well it
Lifted from discussion in http://issues.jalview.org/browse/JAL-2001.
There are pro's and con's to returning a copy of internal state rather the
actual object (e.g. ColumnSelection.getSelected()).
Pro: prevents inadvertent modification that might break the internal
consistency of the object
